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Questions and Answers
What occurs during prometaphase of mitosis?
What occurs during prometaphase of mitosis?
- The chromosomes separate
- Microtubules attach to the chromosomes (correct)
- The chromosomes align
- The DNA condenses and organizes
Which phase of mitosis involves the appearance of classic chromosome structure?
Which phase of mitosis involves the appearance of classic chromosome structure?
- Prophase (correct)
- Anaphase
- Metaphase
- Telophase
What is the main outcome of mitosis?
What is the main outcome of mitosis?
- Formation of one new nucleus
- Formation of four new nuclei
- Formation of two new individual cells (correct)
- Formation of two new nuclei
Which phase of the cell cycle involves the duplication of a cell's DNA?
Which phase of the cell cycle involves the duplication of a cell's DNA?
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What is the approximate frequency of cell duplication for many eukaryotic cells?
What is the approximate frequency of cell duplication for many eukaryotic cells?
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Study Notes
Mitosis Phases
- During prometaphase, the nuclear envelope breaks down, and the chromosomes condense and become visible as separate structures.
- The classic chromosome structure appears during prophase.
Cell Cycle and Mitosis
- The main outcome of mitosis is the production of two daughter cells that are genetically identical to the parent cell.
- The replication of a cell's DNA occurs during the S (synthesis) phase of the cell cycle.
- Many eukaryotic cells duplicate approximately every 24 hours, meaning the frequency of cell duplication is roughly once a day.
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